Bevel-square.



No. 789,578. PATENTED MAY 9, 1905. M. G. SWAN. BBVBL SQUARE.

APPLIOATION FILED MAY 14, 1904.

' 2 SHBETS-SHEBT 1.

Kaw@ Jil/mf@ No. 789,578. PATENTED MAY 9, 1905.

' M. G. SWAN.

BBVEL SQUARE. APFLIUATION FILED Mn 14. 1904.

2 SHEBTSSHLBT 2.

inria @rane Patented lll/[ay 9, 1905,.

MORION GREELEY SWAN, OF UPLAND, CALlFORNIA.

BEVIELm-SQUIRE..

SPECIjICACLION` forming part of Letters Patent No. 789,578, dated May 9,1905.

Application filed May 14, 1904. Serial No. 208,002.

To (tl/f whom, if; 'nw/y concer/t:

Be it known that I, MoirroN (inn nLnY SWAN, a citizen of the UnitedStates, residing at Upland, in the county of San Bernardino and State ofCalifornia, have invented new and useful Improvements in Bevel-Squares,of which the following is a specification.

This invention relates to bevel-squares, the object of the inventionbeing' to provide a carpenters implement of the character referred towhich will automatically give the side bevel for all jack, hip, andvalley rafters, sheathing' on hips and valley, cornices, stairskirtings,and hopper-join ts, the implement being' also useful in laying' offrafters for any pitch of roof, being' adapted for use as a trysquare, aunter-square, and an ordinary bevelsquare.

With the above and other objects in view, the nature of which will morefully appear as the description proceeds, the invention consists in thenovel construction, combination, and arrangement of parts, as hereinfully described, illustrated, and claimed.

In the accompanying' drawings, Figure 1 is a plan Aview of abevel-square embodying the present invention, showing the L-shaped plateset at right angles to the stock and held by a brace orconnecting-blade. Fig. 2 is an edge view of the same. Fig. 3 is a planView showing the Il -shaped plate set at right angles to the stock andthe connecting-blade or b 'ace folded into the slot in the stock. Fig. 4is an end elevation of the square as arranged in Fig. Fig'. 5 is an edgeview of the stock, illustratingl particularly the slot therein.

Like reference-numerals designate corresponding parts in all figures ofthe drawings.

The bevel-sfpiare contemplated in this invention comprises, essentially,a stock l, which under the preferred embodiment of the invention iscomposed of wood of the requisite thickness to provide for the formationtherein of a slot 2, which extends longitudinally of the stock thegreater portion of the length thereof, which slot may be described asbeing' disposed edgewise of the stock or in a plane parallel with theopposite upper and lower faces of the stock, as best illustrated in Fig.5.

Lying within the slot 2 is a combined brace and connecting-blade 3,which is pivotally mounted at 4 within the slot, the pivot l occurringintermediate the ends of the part 3 and closer to one end than theother, as clearly indicated in Fig. l, so that portions of the brace orconnecting-blade may extend on opposite sides of the stock l when saidbrace is swung' outward at an angle, as shown in Fig. l. At or near theouter extremity of the longer arm of the brace 3 the latter is providedwith a thumb-screw 5, which is received in and adapted to worklengthwise of a curved slot (5 in the elbow or short curved arm 7 of theL-shaped plate 8. lheplate is provided at a point about midway of itslonger arm with a hole 9 to receive the shank of a thumbscrew l0, whichis inserted through the end portion of the stock l, said plate passing'through the slot 2, above described. The slot 6 is enlarged at one endto form a hole l1, which is also adapted to receive the thumbscrew lOwhen the plate 8 is adjusted to the position illustrated in Fig. 3,wherein the device as a whole is especially adapted for use as atry-square, mitcr-square, or ordinary bevelsquare.

The stock l is preferably graduated in inches along' one or both edges,as shown at l2, and the outer edge of the plate 8 is also graduated orprovided with a scale, as shown at 13. '.lhe shorter curved arm 7 ofplate 8 is also graduated, as shown at la, to designate suitablepositions for the thumb-screw 5, so that without calculation the plate 8may be set at any desired angle or pitch with respect to the stock lwhen the thumb-screw l() is inserted through the openingI 9 of the plate8. rlfhe plate 8 docs not depend for its retention on the thumb-screwl0, but is maintained at the proper angle by the brace orconnecting-blade 3, which is used in laying' olf angles upon rafters andthe like. The relation of the slot 6 and the brace or connecting-blade 3to the thumb-screw 5 is such that when the screw 5 is in the outermostend of the slot 6 the plate 8 stands exactly at right angles to thestock 1. 'By projecting the brace or connectingblade 3 through the stockl the correct bevel for hopper-joints and other similar cuts isprovided. for, the device being thus useful for IOO laying off angles ofcornices, stairs, and the like.

rlhe implement makes it easy to obtain the side bevel in cutting jackand hip rafters, and by setting the plate to the plumb cut of raftersthe connecting-blade will always give the side bevel for any pitch ofrooic within the compass of the square. The timber to be marked willalways lie parallel with the stock of the implement. The plumb cut isordinarily obtained by means of the usual framingsquare; but for anydelinite pitchsuch as one-quarter, one-third, and one-half, &c. thescale or graduations 14 along the edge of the slot 6 will enable theparts to be quickly and accurately adjusted so as to indicate thedesired angle or cut. When the brace or connecting-blade is folded intothe slot 2 in the stock, the plate 8 may be used as an ordinarybevel-square.

Changes in the form, proportion, and minor details o1 construction-maybe resorted to without departing from the principle or sacrificing anyof the advantages of the invention.

Having thus described the invention, what is claimed as new is*- l. Thecombination with a slotted stock, of a plate pivotally mounted in theslot of the stock, and a brace or connecting-blade also pivotallymounted in said slot of the stock and having a slidingly-adjustableconnection with f the said plate.

2. rlhe combination with a slotted stock, of

i an L-shaped plate pivotally mounted therein justable connection withthe slot in the laterally-extending portion of the plate, substantiallyas described.

4. The combination with a slotted stock, of an L-shaped plate pivotallymounted therein and provided with a curved slot, and a blade pivotallymounted in the slot of the stock and provided with a thumb-screwadjustable in the slot of the plate, substantially as described.

5. The combination with a slotted stock, of an L-shaped plate pivotallymounted therein and provided with a curved slot, and a coninenting-bladepivotally connected intermediate its ends with the stock and providedwith a thumb-screw adjustable in the slot ot' the plate, substantiallyas described.

6. The combination with a slotted stock, of an L-shaped plate one arm ofwhich is pivotally connected intermediate its ends to the stock, theother arm being provided with a longitudinal slot, and aconnecting-blade pivotally connected intermediate its ends to the stockand provided at one end with an engaging' device which is adjustablelengthwise of the slot in the plate, substantially as described.

7. The combination with a slotted stock, of an L-shaped plate one arm ofwhich is provided with a plurality of openings to receive thevpivot forconnecting the same with the stock to provide for the relativeadjustment of said parts, the said plate being provided with a slottedarm or extension, and a blade pivotally connected tothe stock andprovided with an engaging device which is adjustable lengthwise of theslot in the plate, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

MORTON GREELEY SVAN.

lVitnesses:

T. H. HERRETT, N. U. MiLLnr..

